AMT 3201-96 Specifications Information And Repair Parts Manual Download Page 2

Specifications Information and Repair Parts Manual  

     

                                                       3201-96

3201-250-00

2

6/2015

The motor used with this pump uses sleeve bearings which require 
periodic reoiling. Each motor has two bearings, which should be 
lubricated once a year. The bearings are located around the motor 
shaft (See Figure 2), at each end of the motor. The oil reservoirs have 
plastic plugs covering them. Pull out the plugs and put oil in. Replace 
plugs after oiling.

Follow re-oiling instructions on the motor (see nameplate or terminal 
box cover). If instructions are not included, re-oil once a year with 30-
35 drops of SAE No. 20 non-detergent or electric motor oil. Do not 
over-lubricate.

PUMP

There is no normal pump maintenance. Some work might be required 
on the pump when output has been reduced or when seal leaks. This 
can be caused by lint build-up around the impeller. Disassemble pump 
(See Mechanical Seal Replacement), remove impeller (Ref. No. 5) 
and clean out, then re assemble.

MECHANICAL SEAL REPLACEMENT

After pump has been in service for a long period of time, or if pump 
has been in severe service, it may be necessary to replace shaft seal 
assembly (Ref. No. 3 & 4). Leakage can be detected by a dripping or 

flow of liquid from area around motor shaft (Ref. No. 1).

 

The precision lapped faces on shaft seal assembly are easily damaged.
Handle your replacement seal carefully and read these instructions 
before attempting to replace seal.

Refer to Figure 5 for Parts Illustration.
1.  Disassemble casing (Ref. No. 8) and casing seal (Ref. No. 7) from 

adapter (Ref. No. 2) by removing fasteners (Ref. No. 9).

2.  Notice the location of impeller (Ref. No. 5) on shaft. It should be 

compressing seal cartridge (Ref. No. 3). Loosen fastener (Ref. 
No. 6) and impeller will slide off shaft.

3.  Pry seal seat (Ref. No. 4) from impeller recess with a small 

screwdriver (see Figure 3).

4.  Press old seal cartridge out of adapter by pushing from motor 

side.

NOTE:

 Use a 11/4” pipe or a socket from a tool set.

5.  Clean adapter seal cavity before inserting new seal cartridge.
6.  Carefully wipe polished surface of new seal seat with a clean 

cloth.

7.  Wet the rubber portion of seal seat with a light coating of soapy 

water.

8.  Press seal seat squarely into cavity in impeller as illustrated. If 

seal seat does not press squarely into cavity, it can be adjusted 
in place by pushing on it with a piece of pipe. Always use a piece 
of cardboard between pipe and seal seat to avoid scratching seal 
seat. This is a lapped surface and must be handled very carefully.

9.  After seal seat is in place, check that it is clean and has not been 

scratched or cracked.

10.  Replace seal cartridge. A sealing compound (such as silicon or 

Permatex) may be used to insure a water tight fit on outside of 

cartridge.

11.  Mount adapter on motor mounting face.
12.  Replace impeller, tightening it securely with fastener in 

approximately same position it had been before disassembly. 
(See Step 2).

13.  Make sure casing seal is in place on adapter.
14.  Replace casing, tightening securely with fasteners.

Centrifugal Laundry Tray Pump

Figure 3 - Mechanical Seal

Figure 4 - Mechanical Seal

ROUTINE

Pump should be checked daily, weekly, monthly, etc. for proper 
operation. If anything has changed since unit was new, unit should 

be removed and repaired or replaced. Only qualified electricians or 

service personnel should attempt to repair this unit. Improper repair 
and/or assembly can cause an electrical shock hazard.

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